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Simply integrate into Visual C# project, supporting easy deployment and distribution in .NET Framework 2.0 above. Able to edit PDF document high-efficiently in ... Using Descendants and DescendantsAndSelf, we can quickly retrieve all the elements that we re interested in within a given XML tree as long as the elements are under the current node. When querying XML, you ll find that Element, Elements, Attribute, and Descendants are the primary axis methods that you use for finding edit pdf c#: How to make a fillable PDF and C# iTextSharp | Ernani.me edit pdf file using itextsharp c# PDF Editor SDK Windows Service Example - GitHub
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I have a pdf file which has some textfields which i created using form tool in acrobat. And i wanted to add PdfPTable through code to add ... the elements and attributes that are of interest in an XML tree. Since Elements and Descendants return IEnumerable<XElement> objects, they work nicely with the standard query operators and query expressions. We ll be digging into how the standard query operators work with LINQ to XML in section 10.2, but to give you a small taste, let s rewrite our earlier query using the LINQ query expression syntax. See listing 10.7. Similarly, a stop calculation button stops the calculation by calling the StopCalculation method as follows. XElement root = XElement.Load("categorizedBooks.xml"); var books = from book in root.Descendants("book") select (string)book; foreach(string book in books) { Console.WriteLine(book); } I m using a static method again, from the Microsoft.VisualBasic.Interaction type, which I just loaded into memory with the previous command. Again, if the static method stuff doesn t make sense, don t worry use this command as-is. c# docx to pdf: convert word document to pdf using itextsharp c#: C# convert word ... how to edit pdf file in asp net c# ITextSharp edit an existing pdf - Stack Overflow
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Close(); } } catch (Exception ex) { } } //Create a PDF from existing and with a template private void CreatePDFTemplateMSnew(string strSource) ... As you can see, with a little help from the Descendants axis method, LINQ to XML allows us to write a query against our XML data using the same syntax that we use for querying our objects and relational data. Before further investigating how we can use the standard query operators and query expressions, let s finish off our discussion of the remaining LINQ to XML axis methods as well as show the more compact syntax Visual Basic provides for several of the axis methods already discussed. While not as commonly used as the axis methods we ve already covered, the remaining axis methods provide important functionality to developers. Let s start by exploring an axis method that shares many similarities with the Descendants axis method, Ancestors. edit pdf file using itextsharp c# Create pdf adding images and changing font on pdf c# itextsharp ...
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Mar 5, 2010 · Using a template to programmatically create PDFs with C# and iTextSharp ... which makes it so that the fields wont be editable on the new PDF. The Ancestors axis method works exactly like the Descendants method, except instead of searching down the XML tree, it searches up the tree. It offers the same signature and has the same related methods, AncestorsAndSelf and AncestorNodes. Unlike all the other axis methods we ve discussed so far, Ancestors searches for matching elements that are above the current node within the XML tree. So far, we ve learned how to get a list of books within a category element using a combination of Element and Elements, as well as how to get every book within our XML using Descendants. In this section, we re going to learn how we can use Ancestors to get the list of categories that a given book is in. Since the category elements are nested, we ll look to get the full category path for a book in the following form: private void stopButton_Click( object sender, System.EventArgs e ) { calculationTask.StopCalculation(); } The first thing we ll need to do is select the book that we re interested in. To do this, we can use the Descendants axis method to select all the books in our XML. Once we have all the books, we can filter the list of books down to the single one we re interested in using the Where and First standard query operators, like so: XElement root = XElement.Load("categorizedBooks.xml"); XElement dddBook = root.Descendants("book") .Where(book => (string)book == "Domain Driven Design") .First(); In the code, we select the Domain Driven Design book element. Once we have the book element in hand, we can call the Ancestors axis method to select all the parent categories for the book element. Once we have the list of parent elements, we ll do some special processing with Reverse and String.Join to get the categories formatted as we desire. When all is said and done, we end up with listing 10.8. XElement root = XElement.Load("categorizedBooks.xml"); XElement dddBook = root.Descendants("book") .Where(book => (string)book == "Domain Driven Design" ).First(); IEnumerable<XElement> ancestors = dddBook.Ancestors("category").Reverse(); string categoryPath = Build the category path String.Join("/", ancestors.Select(e => (string)e.Attribute("name")).ToArray()); Summary Console.WriteLine((string)dddBook + " is in the: " + categoryPath + " category."); The three bits you can change are the parameters of the InputBox() method: The result printed to the console includes everything we expect: itextsharp edit existing pdf c# Fill in PDF Form Fields Using the Open Source iTextSharp DLL
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